Endotoxins are primarily Lipopolysaccharides (LPS) from gram-negative bacteria. Endotoxins are remarkably stable, resisting standard sterilization methods like boiling or autoclaving. The challenge in bioprocessing is that endotoxins frequently aggregate into large micelles or bind tightly to target proteins through electrostatic and hydrophobic interactions. Creative Biolabs offers a diverse portfolio of endotoxin removal resins tailored to different scales and protein types. These resins utilize specific ligands to selectively adsorb these contaminants while allowing the target protein to flow through, ensuring the final product is safe for in vivo and in vitro applications.
The pharmaceutical industry is governed by strict international standards regarding bacterial endotoxins to ensure patient safety. Regulatory bodies mandate the use of the Limulus Amebocyte Lysate (LAL) assay or the Recombinant Factor C (rFC) test for quantification. The general limit for injectable drugs is set at 5 EU/kg body weight per hour. For specialized applications, such as intrathecal injections, the limit is even more stringent at 0.2 EU/kg. Creative Biolabs designs its products to help you consistently surpass these international benchmarks, facilitating smoother regulatory filings.
Modern endotoxin removal resins are engineered for high specificity and mechanical stability. Our Endotoxin Removal Resins are designed to address the dual challenges of high contaminant concentration and delicate protein stability. Our resins incorporate several high-end scientific features for superior performance in research and clinical workflows.
The resins offer capacities up to 2,000,000 EU/mL, allowing for the processing of highly contaminated feedstreams.
Utilizing advanced ligands or specialized affinity peptides to distinguish between target proteins and LPS aggregates.
Resins are stable across a wide pH range (pH 5-10) and are compatible with common additives like urea, imidazole, and various detergents.
Optimized surface chemistry ensures that protein loss is minimized, often achieving recovery rates exceeding 90-95%.
The matrix is designed for multiple regeneration cycles without loss of binding efficiency.
At Creative Biolabs, we provide a specialized suite of Endotoxin Removal Resins designed to meet the rigorous purity standards of biopharmaceutical research and manufacturing. Our product line is engineered to handle various scales and protein sensitivities.
Our flagship product features modified poly-L-lysine on cellulose beads for maximum EU removal and zero ligand toxicity.
Utilizing immobilized affinity peptides for high-performance removal in complex matrices containing detergents or high salt.
Pre-packed columns designed for fast, small-scale R&D applications where speed and convenience are paramount.
Our Endotoxin Removal Resins provide the mechanical rigidity needed for high-pressure FPLC systems. Whether you are using our high-capacity affinity beads or our convenient spin columns, you are guaranteed a solution that balances high protein recovery with unmatched endotoxin depletion. Our 20 years of expertise ensure that your therapeutic proteins are safe, pure, and ready for the next stage of development. Contact us for detailed product specifications.
Yes. While binding is optimal at pH 6-8, our resins are stable across a wide range, and we can help you optimize a buffer system that maintains your protein's stability while effectively trapping endotoxins.
When properly regenerated with 0.2 N NaOH according to our protocols, our resins can be reused at least 5 times with minimal loss in efficiency.
Spin columns are perfect for rapid, small-scale screening. For larger volumes or automated FPLC integration, we recommend our slurry format for custom column packing. We invite you to inquire about a tailored recommendation.
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